// 背景图片开始
.mod_bg {
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
    width: 100%;

    .bg__item {
        height: 300px;
        background-repeat: no-repeat;
        background-position: top;
    }

    .bg1 {
        background-image: url('https://y.qq.com/artists/js/img/bg1_1ff56fe.jpg?max_age=25920000');
    }

    .bg2 {
        background-image: url('https://y.qq.com/artists/js/img/bg2_2164d9a.jpg?max_age=25920000');
    }

    .bg3 {
        background-image: url('https://y.qq.com/artists/js/img/bg3_47318a1.jpg?max_age=25920000');
    }

    .bg4 {
        height: 600px;
        background-image: url('https://y.qq.com/artists/js/img/bg4_e5da9ba.jpg?max_age=25920000');
    }

    .bg5 {
        height: 1500px;
        background-image: url('https://y.qq.com/artists/js/img/bg5_778574a.jpg?max_age=25920000');
    }

    .bg6 {
        height: 1200px;
        background-image: url('https://y.qq.com/artists/js/img/bg6_6075417.jpg?max_age=25920000');
    }

    .bg7 {
        background-image: url('https://y.qq.com/artists/js/img/bg7_c06e0db.jpg?max_age=25920000');
    }

    .bg8 {
        background-image: url('https://y.qq.com/artists/js/img/bg8_63f24b4.jpg?max_age=25920000');
    }
}

// 背景图片结束




.wrap {
    padding-top: 0;
    margin: 0 auto;
    position: relative;
    z-index: 3;
    //最上方开始了
    .wrap-head {
        position: relative;
        height: 920px;
        overflow: hidden;

        // 顶部左侧图标
        .top_box__logo {
            position: absolute;
            top: 54px;
            left: 82px;
            width: 160px;
        }

        // 顶部右侧图标
        .mod_top_login {
            position: absolute;
            right: 120px;
            top: 50px;
            line-height: 40px;
            z-index: 10;

            .top_login__help {
                font-size: 16px;
                margin-top: 5px;
                float: left;
                height: 32px;
                line-height: 32px;

                .top__link {
                    float: left;
                    color: #fff;
                    background: hsla(0, 0%, 84.7%, .2);
                    border-radius: 999px;
                    padding: 0 12px 0 11px;
                    margin-right: 16px;
                    &:hover {
                        color: #31c27c;
                    }
                    .icon_svg {
                        float: left;
                        width: 20px;
                        height: 20px;
                        fill: currentColor;
                        margin: 7px 3px 0 0;    
                    }
                }
            }
            .top_login__btn {
                float: left;
                height: 32px;
                line-height: 32px;
                display: block;
                width: 90px;
                text-align: center;
                font-size: 20px;
                color: #fff;
                border: 1px solid;
                border-radius: 34px;
                &:hover {
                    color: #31c27c;
                    border: 1px solid #31c27c;
                }
            }
        }
        // QQ音乐开放平台
        .top_box__tit {
            position: absolute;
            left: 50%;
            top: 180px;
            width: 432px;
            height: 32px;
            margin-left: -216px;
            z-index: 15;
            background-size: 800px;
            font-size: 0;
            background-image: url('https://y.qq.com/artists/js/img/sprite_top_b24c015.png?max_age=25920000');
            opacity: 0;
            animation: run .3s linear .7s forwards;
        }
        // 闪耀从这里开始
        .top_box__desc {
            top: 290px;
            width: 522px;
            height: 226px;
            margin-left: -261px;
            background-position: 0 -50px;
            z-index: 5;
            background-size: 800px;
            position: absolute;
            left: 50%;
            font-size: 0;
            background-image: url('https://y.qq.com/artists/js/img/sprite_top_b24c015.png?max_age=25920000');
            opacity: 0;
            animation: run .3s linear .9s forwards;
        }
        // 立即入驻
        .top_box__btn {
            top: 774px;
            z-index: 6;
            display: flex;
            justify-content: center;
            align-items: center;
            width: 260px;
            height: 68px;
            margin-left: -145px;
            font-size: 0;
            border-radius: 68px;
            background: #00ed59;
            position: absolute;
            left: 50%;
            color: #1a1a1a;
            opacity: 0;
            animation: run .3s linear 1.2s forwards;
            &::after {
                content: "";
                display: block;
                width: 120px;
                height: 27px;
                background-image: url('https://y.qq.com/artists/js/img/sprite_tit_f995b88.png?max_age=25920000');
                background-repeat: no-repeat;
                background-size: 400px auto;
                background-position: 0 -850px;
                opacity: 0;
                animation: run .3s linear 1.2s forwards;
            } 
        }

        // nav导航
        .nav {
            color: #1a1a1a;
            position: absolute;
            left: 50%;
            top: 885px;
            display: flex;
            justify-content: center;
            align-items: center;
            width: 1000px;
            margin-left: -505px;
            .nav__item {
                display: block;
                width: 64px;
                height: 15px;
                margin: 0 40px;
                font-size: 0;
                cursor: pointer;
                background-image: url('https://y.qq.com/artists/js/img/sprite_tit_f995b88.png?max_age=25920000');
                background-repeat: no-repeat;
                background-size: 400px auto;
                background-position: 0 -890px;
            }
        }

        .top_box__star {
            font-size: 0;
            font-style: italic;
            background-image: url('https://y.qq.com/artists/js/img/sprite_top_b24c015.png?max_age=25920000');
        }

        .top_box__line {
            height: 814px;
            bottom: 144px;
            width: 1480px;
            // height: 0;
            margin-left: -760px;
            overflow: hidden;
            position: absolute;
            left: 50%;
            
            &::after {
                content: "";
                position: absolute;
                bottom: 0;
                left: 0;
                width: 100%;
                height: 814px;
                background-image: url('https://y.qq.com/artists/js/img/sprite_top_b24c015.png?max_age=25920000');
                background-position: 0 -580px;
                // transform: translateY(0);
                animation: shoots .6s linear;
            }
        }
        
        .top_box__dot {
            position: absolute;
            left: 50%;
            top: 148px;
            width: 1238px;
            height: 290px;
            margin-left: -620px;
            background-position: 0 -1440px;
            font-size: 0;
            background-image: url('https://y.qq.com/artists/js/img/sprite_top_b24c015.png?max_age=25920000');
            
            animation: shoots 0.4s linear 0.3s;
        }
    }
    // 最上方结束

    // 作品流量推广开始
.mod_part {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
    width: 1260px;
    height: 640px;
    margin: 0 auto 50px;
    padding: 0;
    h1, h2, h3, h4, h5, h6 {
        font-size: 100%;
        font-weight: 400;
    }
    .tit1 {
        &::before {
            background-position: 0 -1200px;
            margin-top: -80px;
        }
    }
    .tit2{
        &::before {
            background-position: 0 -1300px;
        }
        .tit_txt {
            background-position-y: -97px;
        }
    }
    .tit3{
        &::before {
            background-position: 0 -1400px;
        }
        .tit_txt {
            background-position-y: -195px;
        }
    }
    .tit4 {
        &::before {
            background-position: 0 -1500px;
        }
        .tit_txt {
            background-position-y: -293px;
        }
    }
    .tit5{
        &::before {
            background-position: 0 -1600px;
        }
        .tit_txt {
            background-position-y: -400px;
        }
    }
    .mod_tit {
        &::before {
            content: "";
            display: block;
            height: 87px;
            margin-bottom: 30px;
            background-image: url('https://y.qq.com/artists/js/img/sprite_tit_f995b88.png?max_age=25920000');
            background-repeat: no-repeat;
        }
        .tit_txt {
            display: block;
            width: 400px;
            height: 50px;
            line-height: 999px;
            overflow: hidden;
            background-image: url('https://y.qq.com/artists/js/img/sprite_tit_f995b88.png?max_age=25920000');
            background-repeat: no-repeat;
            background-size: 400px auto;
        }
    }
    .mod_desc {
        margin-top: 15px;
        font-size: 24px;
        font-weight: 300;
        color: #fff;
    }
    .mod_more {
        display: flex;
        margin-top: 76px;
        font-size: 24px;
        .more__link {
            display: flex;
            align-items: center;
            color: #fff;
            .more__arrow {
                display: block;
                width: 10px;
                height: 10px;
                margin-left: 3px;
                border-color: transparent currentcolor currentcolor transparent;
                border-style: solid;
                border-width: 1px;
                transform: rotate(-45deg);
            }
        }
    }
    .mod_pic {
        position: absolute;
    }
    .pic11 {
        top: 65px;
        right: 0;
    }
    .pic12 {
        top: 110px;
        right: 385px;
    }
    .pic21 {
        top: 150px;
        right: 0;
    }
    .pic22 {
        top: 380px;
        right: 200px;
    }
    .pic31 {
        top: 140px;
        right: 0;
    }
    .pic32 {
        top: 180px;
        right: 40px;
    }
    .pic33 {
        top: 225px;
        right: 40px;
    }
    .pic41 {
        top: 60px;
        right: 0;
    }
    .pic51 {
        top: 160px;
        right: 55px;
    }
    .pic52 {
        top: 272px;
        right: 0;
    }
    .pic53 {
        top: 137px;
        right: 86px;
    }
    .pic54 {
        top: 134px;
        right: 86px;
    }
}   
.btn_bottom {
    display: block;
    width: 260px;
    height: 68px;
    margin: 78px auto 0;
    line-height: 999px;
    overflow: hidden;
}
// 作品流量推广结束
}




@keyframes shoots{
    0% {
        transform: scale(0);
    }
    100% {
        transform: scale(1);
    }
}

@keyframes run {
    0% {
        transform: translateY(50px);
        opacity: 0;
    }
    100% {
        transform: translateY(0);
        opacity: 1;
    }
}
//最上方结束